EP1947545B1 - Power supply circuit for changing loads with three phases - Google Patents

Power supply circuit for changing loads with three phases Download PDF

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Publication number
EP1947545B1
EP1947545B1 EP20070015591 EP07015591A EP1947545B1 EP 1947545 B1 EP1947545 B1 EP 1947545B1 EP 20070015591 EP20070015591 EP 20070015591 EP 07015591 A EP07015591 A EP 07015591A EP 1947545 B1 EP1947545 B1 EP 1947545B1
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EP
European Patent Office
Prior art keywords
group
switching means
loads
circuit arrangement
connection
Prior art date
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Not-in-force
Application number
EP20070015591
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German (de)
French (fr)
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EP1947545A2 (en
EP1947545A3 (en
Inventor
Wilfried Vollmar
Michael-Harro Liese
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AEG Power Solutions BV
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AEG Power Solutions BV
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Application filed by AEG Power Solutions BV filed Critical AEG Power Solutions BV
Priority to KR1020080004190A priority Critical patent/KR20080068553A/en
Priority to US12/015,927 priority patent/US7851942B2/en
Priority to CN2008101287272A priority patent/CN101364772B/en
Priority to JP2008009903A priority patent/JP5524450B2/en
Publication of EP1947545A2 publication Critical patent/EP1947545A2/en
Publication of EP1947545A3 publication Critical patent/EP1947545A3/en
Application granted granted Critical
Publication of EP1947545B1 publication Critical patent/EP1947545B1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit

Definitions

  • the invention relates to a circuit arrangement for supplying loads, in particular variable loads, from three phases of an electrical power supply.
  • a special feature of the reactor is that the loads, which are formed by the resulting silicon crystals, are arranged in three concentric circles. Each of these concentric circles comprises a group of silicon crystals, i. H. a group of loads. The number of loads of the load group forming the outer ring is greater than the number of loads of the inner ring.
  • the voltage curve or current curve that is traversed when growing the silicon crystals should be the same for the loads of a load group. However, differences between the groups of charges can be observed in respect of the current or electricity to be complied with Voltage curves are available. It therefore makes sense to regulate the current or voltage curve during the growth of the silicon crystals of each load group with its own control loop.
  • the circuit arrangement according to the invention has four groups of terminals for the loads, which are hereinafter referred to as terminal groups.
  • the circuit arrangement is suitable for supplying the terminals of the second terminal group from the first phase and set up.
  • the circuit arrangement is also suitable and arranged for supplying the terminals of the fourth terminal group from a second phase.
  • the circuit arrangement for supplying the terminals of the first terminal group and the third terminal group from a third phase is suitable and arranged.
  • a circuit arrangement according to the invention for regulating the voltage of the four terminal groups is suitable and configured, wherein the first terminal group is associated with a first control loop, the second terminal group is associated with a second control loop and the third and the fourth terminal group are assigned to a common third control loop.
  • the first control circuit comprises a first regulator and a first group of controllable switching means for adjusting the voltage as actuators of the first control circuit, this first group of controllable switching means being designated as a first switching means group.
  • the second control circuit comprises a second controller and a second group of controllable switching means, which is provided for adjusting the voltage as an actuator of the second control loop.
  • the second group of controllable switching means is referred to below as the second switching means group.
  • the third control circuit finally comprises a third controller and a third group of controllable switching means for adjusting the voltage as an actuator of the third control circuit, which is referred to below as the third switching means group.
  • controllable switching means may be thyristors.
  • suitable switching means are used, with which a voltage can be adjusted.
  • the first switching means group may be suitable and arranged for switching between a parallel supply and a serial supply of the loads which can be connected to the first connection group.
  • the second switching means group may be suitable for switching between a parallel supply and a serial supply of connectable to the second terminal group loads and set up.
  • the third switching means group for switching between a parallel supply and a serial supply to the third and / or the fourth Connection group connectable loads suitable and furnished.
  • the alternation between a parallel supply and a serial supply of the loads that can be connected to the terminal groups is advantageous for growing silicon crystals, since in a first phase a high voltage at the loads and in a second phase a high current through the loads favorable for the Growth of changing loads or silicon crystals is.
  • the switching means of the first switching means group may be suitable and arranged in a circuit arrangement according to the invention for switching currents from the third phase.
  • the switching means of the second switching means group may be suitable and arranged for switching currents from the first phase.
  • a first subset of switching means of the third switching means group may be suitable and arranged for switching currents from the second phase, and a second subset of switching means of the third switching means group may be suitable and arranged for switching currents from the third phase.
  • a circuit arrangement according to the invention can be configured such that the lowest voltage which can be set by the switching means of the first switching means group or the second subgroup of the third switching means group is half the voltage which can be set by the switching means of the second group and the first subgroup of the third switching means group.
  • variable loads are connected to a circuit arrangement according to the invention
  • an arrangement according to the invention can be obtained in which a first load group is connected to the terminals of the first connection group, a second load group is connected to the terminals of the second terminal group and a third load group is connected to the terminals of the third terminal group and the terminals of the fourth terminal group.
  • the resistance of the loads connected to the second and the fourth connection group is advantageously the same.
  • the resistance of the loads connected to the first and third terminal groups is advantageously the same.
  • the total resistance of the loads connected to the first and the third terminal group can advantageously be the same as the resistance of the loads connected to the second or the fourth connection group.
  • the circuit arrangement according to Fig. 1 has three transformers T1, T2, T3, which are connected with their primary side to a three-phase power supply network having a first phase L1, a second phase L2 and a third phase L3.
  • the secondary side of the transformers T1, T2, T3 each have a plurality of taps, so that different voltages can be tapped on the secondary side of the transformers. While the highest voltage to be taken off is the same for all three transformers T1, T2, T3, the lowest secondary-side voltage can be tapped twice for the first transformer T1 and the second transformer T2 as for the third transformer T3.
  • various switching means S111 to S345 are connected, via which three groups I, N, O of loads I1, I2; M1, M2; O1, O2, O3 are connected.
  • the loads are supplied uniformly with electrical energy from the three phases of the L1, L2, L3 of the power supply.
  • the loads I1 to O3 are distributed over the three phases L1, L2, L3 so that they are loaded evenly. On the other hand, it is necessary that the loads I1 to O3 are controlled in groups. This leads to the circuit arrangement according to the invention.
  • the loads I1, I2 of the first load group I which are connected to the circuit arrangement via terminals A11, A12, A13 of a first terminal group to the circuit arrangement, supplied from the third phase L3.
  • the loads M1, M2 of the second load group M which are connected via the terminals A21, A22, A23 a second terminal group to the circuit arrangement, however, are supplied from the first phase L1 with electrical energy.
  • the total resistance of the loads M1, M2 of the second group is approximately twice as large as the total resistance of the loads I1, I2 of the first group I.
  • the loads O1, O2, O3 of the third load group O are supplied in part from the second phase L2 and partly from the third phase L3. While a subgroup O3 of the load group O is supplied from the third phase L3 and is connected to the circuit via a terminal A31, A32 of a third terminal group, a subgroup O1, O2 of the third load group O from the second phase L2 is supplied with electrical energy and is connected to the circuit arrangement via terminals A41, A42, A43 of a fourth terminal group.
  • the terminals A11, A12, A13 of the first terminal group having the third phase L3, the terminals A21, A22, A23 of the second terminal group having the first phase L1, the terminals A31, A32 of the third terminal group having the third phase L3 and the terminals A41, A42, A43 of the fourth terminal group of the second phase L2 are connected with the interposition of the switching means S111 to S345.
  • the switching means S111 to S345 are controlled switching means, namely thyristors, which are actuators of a total of three control circuits with which the voltage or the power of the three load groups I, M, O can be regulated.
  • the regulators provided for controlling the actuators or the controlled switching means S111 to S345 are in the Fig. 1 not shown. Also, the necessary for the completion of the three control circuits sensors in the Fig. 1 not designated.
  • the controlled switching means S111 to S345 are arranged in three groups, wherein a first switching means group of switching means S111 to S131 of the first load group I is assigned. A second switching means group of switching means S211 to S231 is assigned to the second load group M. The third remaining switching means group of switching means S311 to S345 is assigned to the third load group O. With the switching means groups, the setting of the voltage and thus the power of the loads of their respective associated load group I, M, O is possible.
  • the first switching means group makes it possible that the two loads I1, I2 of the first load group I can be supplied in parallel or in series with electrical energy. If the electrical loads to be supplied in parallel with electrical energy, one of the switching means S121, S122 or S123 is turned on, so that from one of the taps of the secondary side of the third transformer T3 current through the switching means S121, S122, S123 in the terminal A12 of Circuit arrangement can flow.
  • the current that flows into port A12 branches and distributes itself equally to the two loads E1, E2. While the current via the load I2 and the terminal A13 flows directly to the secondary-side reference potential of the third transformer T3, the current flows through the load I1 via the terminal A11 and through a switched switching means S131 to the reference potential of the third transformer T3.
  • the remaining switching means S111, S112, S113, S114, S115 block the loads I1, I2 in parallel operation.
  • the voltage at the terminal A12 can be adjusted due to the connection of the switching means with different taps.
  • Each of the switching means covers a voltage range, on the one hand by the choice of a phase angle, d. H. is predetermined by the selection of the switch-on of the switching means during a period or the ignition timing of the thyristor and on the other hand by the voltage at the tap.
  • the first load group I via the terminal A11 and one of the thyristors S111, S112, S113, S114 or S115 with one of the taps of the secondary-side coil of the third Transformer T3 connected.
  • the remaining switching means S121, S122, S123 and the switching means S131 block in series operation of the first load group I.
  • the current flows through one of the current-carrying thyristors S111 to S115, the terminal A11, through the load I1, through the load I2 and via the terminal A13 to the reference point of the secondary side of the third transformer T3.
  • one or the other switching means S111 to S115 is energized. With each switching means can be a specific through the tap and the possible phase angle predetermined voltage range are covered.
  • the supply of the loads M1, M2 of the second load group M is analogous to the supply of the first load group I.
  • the loads M1, M2 of the second load group M can be supplied with electrical energy both in parallel operation and in series operation. In the case of parallel operation, supply is via port A22. In the case of series operation via connection A21.
  • connection A22 is connected via a busbar to switching means S221, S222, S223, which in turn are each connected to a secondary-side tap of the first transformer T1.
  • Each one of the switching means S221, S222, S223 is energized and depending on the selection of the switching means and after adjustment of the phase angle, the voltage at the terminal A22 can be specified.
  • the current then flows from terminal A22 into both the load M1 and the load M2.
  • the current flowing through the load M2 is conducted via the terminal A23 directly to the secondary-side reference potential of the first transformer T1, while the current through the load M1 via the terminal A21 and via the switching means 231, which is energized in parallel operation of the loads M1, M2, to the secondary-side reference potential of the transformer T1 is performed.
  • one of the controlled switching means S211, S212, S213, S214, S215 is energized to allow the current from one of the taps of the secondary side of the first transformer T1 to the terminal A21. From the terminal A21, the current flows through the load M1, through the load M2 and through the terminal A23 to the secondary-side reference potential of the first transformer T1.
  • the switching means S221, S222, S223 and the switching means S231 lock in series operation.
  • the electrical power supply of the loads O1 and O2 of the load group O In parallel operation of the loads O1, O2 one of the switching means S321, S322, S323 and the switching means S331 is turned on to a current flow of one of the secondary-side taps of the second transformer T2 via the terminal A42, from there on the one hand by the load O1 via the terminal A41 and the switched-through switching means S331 and on the other hand by the load O2 via the terminal A23 to the secondary-side reference potential of the second transformer T2 to allow.
  • the subgroup formed of the loads O1, O2 of the third load group O is supplied with voltage from one of the secondary-side taps of the second transformer T2 via one of the switching means S311, S312, S313, S314 or S315.
  • the switching means S321, S322, S323 and the switching means S331 lock in series operation of the subgroup, which is formed from the loads O1, O2 of the third load group O.
  • the load O3 of the third load group O is supplied with electrical energy via the third transformer T3 from the third phase L3.
  • one of the switching means S341, S342, S343, S344 or S345 is live.
  • the voltage at the terminal A31, via which the load O3 is connected can be supplied with electrical energy.
  • the voltage is predetermined by the choice of the switching means and by the choice of the phase angle, which is set by a controller, not shown.
  • Each switching means group of the circuit arrangement is assigned a controller which predefines the phase section angle of the individual switching means S111 to S345. While the switching means S111 to 131 of the first switching means group and the switching means S211 to 232 of the second switching means group are supplied with voltage only from one phase L3 and L1 respectively, the switching means S311 to 345 of the third switching means group for supplying the third load group O are made of two phases, viz from the second phase L2 and the third phase L3 supplied with voltage. Nevertheless, the switching means S311 to S345 of the third switching means group are controlled by a controller and belong together with this controller and associated sensors to a third control loop.
  • FIG. 2 illustrated second embodiment of a circuit arrangement according to the invention and an arrangement of the circuit arrangement according to the invention and connected thereto loads has much in common with the first embodiment. There are therefore identical or equivalent components, components and connections provided with the same names. In the following, the differences between the two exemplary embodiments are essentially dealt with.
  • the essential difference between the two circuit arrangements according to the invention is that the circuit arrangement according to FIG Fig. 2 are provided for the connection of three loads on the first terminal group and on the second terminal group.
  • the first group I therefore comprises three loads I1, I2, I3 and the second load group M comprises three loads M1, M2 and M3.
  • Both the three loads of the first load group I and the three loads M1, M2, M3 of the two load groups M can be supplied in parallel as well as serially connected with electrical energy from the third phase L3 or from the first phase L1.
  • both the switching means S131, S231 and the switching means S132 or S232 are connected through.
  • the current then flows to one of the through-connected switches S131, S122, S123 or S221, S222, S223 on the one hand to the connection A13 or A23 between the load I2 and the load I3, or the load M2 and the load M3 and via the switching means S131 or S231 and the connection A11 and A21 to the load 11 and the load M1, respectively.
  • the currents After the currents have flowed through the loads I1, I2, and M1, M2, respectively, they flow from the terminal A12 via the switching means S132 to the secondary reference potential of the third transformer T3 or from the terminal A22 via the switching means S232 to the secondary reference potential of the transformer T1.
  • the currents from the loads I3 and M3 likewise flow via the connections A14 and A24 to the secondary reference potential of the transformers T3 and T1, respectively.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inverter Devices (AREA)
  • Color Television Systems (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The circuit arrangement has a switching device that has four connecting groups (A11-A14,A21-A24,A31,A32,A41-A43) for different loads (I1,I2,M1,M2,O1,O2,O3), where one connecting group is assigned to a control circuit. Another connecting group is assigned another control circuit which comprises another controller and another group of controllable switching unit (S211 to S215, S221 to S223, S231,S232) as actuator for adjusting the voltage. The third and fourth connecting groups are assigned a common third control circuit. An independent claim is also included for an assembly made from circuit arrangement.

Description

Die Erfindung betrifft eine Schaltungsanordnung zur Versorgung von Lasten, insbesondere veränderlichen Lasten, aus drei Phasen einer elektrischen Energieversorgung.The invention relates to a circuit arrangement for supplying loads, in particular variable loads, from three phases of an electrical power supply.

Aus den Gebrauchsmusterschriften mit den Veröffentlichungsnummern DE 20 2004 014 812 U1 , DE 20 2004 004 655 U1 und DE 203 18 061 U1 sind Schaltungsanordnungen bekannt, mit denen Lasten aus einer Phase einer elektrischen Energieversorgung versorgt werden können. Bei den Lasten kann es sich dabei um sich im Betrieb sich verändernde Lasten handeln. Die in den genannten Gebrauchsmusterschriften beschriebenen Schaltungsanordnungen sind insbesondere für Silizium-Abscheidanlagen zum Züchten von Siliziumkristallen vorgesehen. Die Lasten werden dabei von den zu züchtenden Kristallen gebildet. Während des Betriebs wachsen die Kristalle und verändern dadurch ihren elektrischen Widerstand.From the utility model publications with the publication numbers DE 20 2004 014 812 U1 . DE 20 2004 004 655 U1 and DE 203 18 061 U1 Circuit arrangements are known with which loads from a phase of an electrical power supply can be supplied. The loads may be loads changing during operation. The circuit arrangements described in the aforementioned utility model documents are provided in particular for silicon deposition plants for growing silicon crystals. The loads are formed by the crystals to be grown. During operation, the crystals grow and thereby change their electrical resistance.

Für eine besondere Anlage sollen nun deutlich mehr Kristalle gleichzeitig in einem Reaktor gezüchtet werden können. Dafür sind höhere Leistungen erforderlich, weshalb eine dreiphasige Versorgung mit elektrischer Energie sinnvoll ist.For a particular plant now significantly more crystals can be grown simultaneously in a reactor. Higher powers are required for this, which is why a three-phase supply of electrical energy makes sense.

Eine Besonderheit des Reaktors ist, dass die Lasten, die durch die entstehenden Siliziumkristalle gebildet werden, in drei konzentrischen Kreisen angeordnet sind. Jeder dieser konzentrischen Kreise umfasst eine Gruppe von Siliziumkristallen, d. h. eine Gruppe von Lasten. Die Anzahl der Lasten der den äußeren Ring bildenden Lastengruppe ist dabei größer als die Anzahl der Lasten des inneren Rings.A special feature of the reactor is that the loads, which are formed by the resulting silicon crystals, are arranged in three concentric circles. Each of these concentric circles comprises a group of silicon crystals, i. H. a group of loads. The number of loads of the load group forming the outer ring is greater than the number of loads of the inner ring.

Die Spannungskurve beziehungsweise Stromkurve, die beim Züchten der Siliziumkristalle durchfahren werden, soll für die Lasten einer Lastengruppe gleich sein. Zwischen den Lastengruppen können jedoch Unterschiede bei den einzuhaltenden der Strom- beziehungsweise Spannungskurven vorliegen. Es ist daher sinnvoll, den Strom- beziehungsweise Spannungsverlauf während des Züchtens der Siliziumkristalle jeder Lastengruppe mit einem eigenen Regelkreis zu regeln.The voltage curve or current curve that is traversed when growing the silicon crystals should be the same for the loads of a load group. However, differences between the groups of charges can be observed in respect of the current or electricity to be complied with Voltage curves are available. It therefore makes sense to regulate the current or voltage curve during the growth of the silicon crystals of each load group with its own control loop.

Dagegen ist es ebenso sinnvoll, wenn eine gleiche Anzahl von Lasten an die drei Phasen der elektrischen Energieversorgung angeschlossen sind. Der Fachmann steht also vor der Anforderung, eine Schaltungsanordnung vorzuschlagen, die einerseits eine Regelung der drei unterschiedlich großen Lastgruppen ermöglicht und andererseits eine gleichmäßige Verteilung der Lasten der drei Phasen der Energieversorgung sicherstellt.On the other hand, it is equally useful if an equal number of loads are connected to the three phases of the electrical power supply. The skilled person is therefore faced with the requirement to propose a circuit arrangement which on the one hand enables a regulation of the three load groups of different sizes and on the other hand ensures a uniform distribution of the loads of the three phases of the energy supply.

Diese Anforderungen werden durch eine erfindungsgemäße Schaltungsanordnung mit den Merkmalen des Anspruchs 1 gelöst.These requirements are achieved by a circuit arrangement according to the invention with the features of claim 1.

Demnach weist die erfindungsgemäße Schaltungsanordnung vier Gruppen von Anschlüssen für die Lasten auf, die nachstehend als Anschlussgruppen bezeichnet sind. Die Schaltungsanordnung ist zur Versorgung der Anschlüsse der zweiten Anschlussgruppe aus der ersten Phase geeignet und eingerichtet. Die Schaltungsanordnung ist ferner zur Versorgung der Anschlüsse der vierten Anschlussgruppe aus einer zweiten Phase geeignet und eingerichtet. Außerdem ist die Schaltungsanordnung zur Versorgung der Anschlüsse der ersten Anschlussgruppe und der dritten Anschlussgruppe aus einer dritten Phase geeignet und eingerichtet.Accordingly, the circuit arrangement according to the invention has four groups of terminals for the loads, which are hereinafter referred to as terminal groups. The circuit arrangement is suitable for supplying the terminals of the second terminal group from the first phase and set up. The circuit arrangement is also suitable and arranged for supplying the terminals of the fourth terminal group from a second phase. In addition, the circuit arrangement for supplying the terminals of the first terminal group and the third terminal group from a third phase is suitable and arranged.

Ferner ist eine erfindungsgemäße Schaltungsanordnung zum Regeln der Spannung der vier Anschlussgruppen geeignet und eingerichtet, wobei die erste Anschlussgruppe einem ersten Regelkreis zugeordnet ist, die zweite Anschlussgruppe einem zweiten Regelkreis zugeordnet ist und die dritte und die vierte Anschlussgruppe einem gemeinsamen dritten Regelkreis zugeordnet sind.Furthermore, a circuit arrangement according to the invention for regulating the voltage of the four terminal groups is suitable and configured, wherein the first terminal group is associated with a first control loop, the second terminal group is associated with a second control loop and the third and the fourth terminal group are assigned to a common third control loop.

Der erste Regelkreis umfasst einen ersten Regler und eine erste Gruppe von steuerbaren Schaltmitteln zum Einstellen der Spannung als Stellglieder des ersten Regelkreises, wobei diese erste Gruppe von steuerbaren Schaltmitteln als erste Schaltmittelgruppe bezeichnet ist.The first control circuit comprises a first regulator and a first group of controllable switching means for adjusting the voltage as actuators of the first control circuit, this first group of controllable switching means being designated as a first switching means group.

Der zweite Regelkreis umfasst einen zweiten Regler und eine zweite Gruppe von steuerbaren Schaltmitteln, die zum Einstellen der Spannung als Stellglied des zweiten Regelkreises vorgesehen ist. Die zweite Gruppe von steuerbaren Schaltmitteln wird nachfolgend als zweite Schaltmittelgruppe bezeichnet.The second control circuit comprises a second controller and a second group of controllable switching means, which is provided for adjusting the voltage as an actuator of the second control loop. The second group of controllable switching means is referred to below as the second switching means group.

Der dritte Regelkreis umfasst schließlich einen dritten Regler und eine dritte Gruppe von steuerbaren Schaltmitteln zum Einstellen der Spannung als Stellglied des dritten Regelkreises, die nachstehend als dritte Schaltmittelgruppe bezeichnet ist.The third control circuit finally comprises a third controller and a third group of controllable switching means for adjusting the voltage as an actuator of the third control circuit, which is referred to below as the third switching means group.

Gemäß der Erfindung können die steuerbaren Schaltmittel Thyristoren sein. Natürlich ist es denkbar, dass auch andere geeignete Schaltmittel verwendet werden, mit denen eine Spannung eingestellt werden kann.According to the invention, the controllable switching means may be thyristors. Of course, it is conceivable that other suitable switching means are used, with which a voltage can be adjusted.

Gemäß der Erfindung kann die erste Schaltmittelgruppe zum Wechsel zwischen einer parallelen Versorgung und einer seriellen Versorgung der an die erste Anschlussgruppe anschließbaren Lasten geeignet und eingerichtet sein. Auch die zweite Schaltmittelgruppe kann zum Wechsel zwischen einer parallelen Versorgung und einer seriellen Versorgung der an die zweite Anschlussgruppe anschließbaren Lasten geeignet und eingerichtet sein. Schließlich kann auch die dritte Schaltmittelgruppe zum Wechsel zwischen einer parallel Versorgung und einer seriellen Versorgung der an die dritte und/oder die vierte Anschlussgruppe anschließbaren Lasten geeignet und eingerichtet sein.According to the invention, the first switching means group may be suitable and arranged for switching between a parallel supply and a serial supply of the loads which can be connected to the first connection group. Also, the second switching means group may be suitable for switching between a parallel supply and a serial supply of connectable to the second terminal group loads and set up. Finally, the third switching means group for switching between a parallel supply and a serial supply to the third and / or the fourth Connection group connectable loads suitable and furnished.

Der Wechsel zwischen einer parallelen Versorgung und einer seriellen Versorgung der an die Anschlussgruppen anschließbaren Lasten ist für das Züchten von Siliziumkristallen von Vorteil, da in einer ersten Phase eine hohe Spannung an den Lasten und in einer zweiten Phase ein hoher Strom durch die Lasten günstig für das Wachstum der sich verändernden Lasten bzw. Siliziumkristalle ist.The alternation between a parallel supply and a serial supply of the loads that can be connected to the terminal groups is advantageous for growing silicon crystals, since in a first phase a high voltage at the loads and in a second phase a high current through the loads favorable for the Growth of changing loads or silicon crystals is.

Die Schaltmittel der ersten Schaltmittelgruppe können bei einer erfindungsgemäßen Schaltungsanordnung zum Schalten von Strömen aus der dritten Phase geeignet und eingerichtet sein. Die Schaltmittel der zweiten Schaltmittelgruppe können zum Schalten von Strömen aus der ersten Phase geeignet und eingerichtet sein. Eine erste Untergruppe von Schaltmitteln der dritten Schaltmittelgruppe kann zum Schalten von Strömen aus der zweiten Phase geeignet und eingerichtet sein und eine zweite Untergruppe von Schaltmitteln der dritten Schaltmittelgruppe kann zum Schalten von Strömen aus der dritten Phase geeignet und eingerichtet sein.The switching means of the first switching means group may be suitable and arranged in a circuit arrangement according to the invention for switching currents from the third phase. The switching means of the second switching means group may be suitable and arranged for switching currents from the first phase. A first subset of switching means of the third switching means group may be suitable and arranged for switching currents from the second phase, and a second subset of switching means of the third switching means group may be suitable and arranged for switching currents from the third phase.

Eine erfindungsgemäße Schaltungsanordnung kann so ausgestaltet sein, dass die geringste, durch die Schaltmittel der ersten Schaltmittelgruppe oder der zweiten Untergruppe der dritten Schaltmittelgruppe einstellbare Spannung halb so groß ist wie die durch die Schaltmittel der zweiten Gruppe und der ersten Untergruppe der dritten Schaltmittelgruppe einstellbare Spannung.A circuit arrangement according to the invention can be configured such that the lowest voltage which can be set by the switching means of the first switching means group or the second subgroup of the third switching means group is half the voltage which can be set by the switching means of the second group and the first subgroup of the third switching means group.

Sind an eine erfindungsgemäße Schaltungsanordnung veränderliche Lasten angeschlossen, kann man eine erfindungsgemäße Anordnung erhalten, bei der eine erste Lastengruppe an die Anschlüsse der ersten Anschlussgruppe angeschlossen sind, eine zweite Lastengruppe an die Anschlüsse der zweiten Anschlussgruppe angeschlossen ist und eine dritte Lastengruppe an die Anschlüsse der dritten Anschlussgruppe und die Anschlüsse der vierten Anschlussgruppe angeschlossen ist.If variable loads are connected to a circuit arrangement according to the invention, an arrangement according to the invention can be obtained in which a first load group is connected to the terminals of the first connection group, a second load group is connected to the terminals of the second terminal group and a third load group is connected to the terminals of the third terminal group and the terminals of the fourth terminal group.

Der Widerstand der an die zweite und die vierte Anschlussgruppe angeschlossenen Lasten ist vorteilhaft gleich groß. Ebenso ist der Widerstand der an die erste und die dritte Anschlussgruppe angeschlossenen Lasten vorteilhaft gleich groß. Der Gesamtwiderstand der an die erste und die dritte Anschlussgruppe angeschlossenen Lasten kann dabei vorteilhaft genauso groß sein wie der Widerstand, der an die zweite oder die vierte Anschlussgruppe angeschlossenen Lasten.The resistance of the loads connected to the second and the fourth connection group is advantageously the same. Likewise, the resistance of the loads connected to the first and third terminal groups is advantageously the same. The total resistance of the loads connected to the first and the third terminal group can advantageously be the same as the resistance of the loads connected to the second or the fourth connection group.

Zwei erfindungsgemäße Ausführungsbeispiele für Schaltungsanordnungen zur Versorgung von veränderlichen Lasten aus drei Phasen und zwei Anordnungen aus solchen Schaltungsanordnungen und daran angeschlossener Lasten sind anhand der Zeichnungen näher beschrieben. Es zeigt

Fig. 1
ein erstes Ausführungsbeispiel für eine Schaltungsanordnung und eine Anordnung aus einer solchen Schaltungsanordnung und daran angeschlossener Lasten und
Fig. 2
ein zweites Ausführungsbeispiel für eine Schaltungsanordnung und eine Anordnung aus einer solchen Schaltungsanordnung und daran angeschlossener Lasten.
Two embodiments of the invention for circuits for supplying variable loads of three phases and two arrangements of such circuits and connected thereto loads are described in more detail with reference to the drawings. It shows
Fig. 1
a first embodiment of a circuit arrangement and an arrangement of such a circuit arrangement and connected thereto loads and
Fig. 2
A second embodiment of a circuit arrangement and an arrangement of such a circuit arrangement and loads connected thereto.

Die Schaltungsanordnung gemäß Fig. 1 weist drei Transformatoren T1, T2, T3 auf, die mit ihrer Primärseite an ein dreiphasiges Spannungsversorgungsnetz mit einer ersten Phase L1, einer zweiten Phase L2 und einer dritten Phase L3 angeschlossen sind. Die Sekundärseite der Transformatoren T1, T2, T3 weisen jeweils mehrere Abzapfungen auf, so dass unterschiedliche Spannungen sekundärseitig an den Transformatoren abgegriffen werden können. Während die höchste abzugreifende Spannung bei allen drei Transformatoren T1, T2, T3 gleich groß ist, ist die niedrigste sekundärseitig abgreifbare Spannung beim ersten Transformator T1 und beim zweiten Transformator T2 doppelt so groß wie beim dritten Transformator T3.The circuit arrangement according to Fig. 1 has three transformers T1, T2, T3, which are connected with their primary side to a three-phase power supply network having a first phase L1, a second phase L2 and a third phase L3. The secondary side of the transformers T1, T2, T3 each have a plurality of taps, so that different voltages can be tapped on the secondary side of the transformers. While the highest voltage to be taken off is the same for all three transformers T1, T2, T3, the lowest secondary-side voltage can be tapped twice for the first transformer T1 and the second transformer T2 as for the third transformer T3.

An die Sekundärseite der Transformatoren T1, T2, T3 sind verschiedene Schaltmittel S111 bis S345 angeschlossen, über welche drei Gruppen I, N, O von Lasten I1, I2; M1, M2; O1, O2, O3 angeschlossen sind. Die Lasten werden aus den drei Phasen der L1, L2, L3 der Spannungsversorgung gleichmäßig mit elektrischer Energie versorgt.To the secondary side of the transformers T1, T2, T3, various switching means S111 to S345 are connected, via which three groups I, N, O of loads I1, I2; M1, M2; O1, O2, O3 are connected. The loads are supplied uniformly with electrical energy from the three phases of the L1, L2, L3 of the power supply.

Die Lasten I1 bis O3 sind auf die drei Phasen L1, L2, L3 so verteilt, dass diese gleichmäßig belastet werden. Andererseits ist es erforderlich, dass die Lasten I1 bis O3 gruppenweise geregelt werden. Dieses führt zu der erfindungsgemäßen Schaltungsanordnung.The loads I1 to O3 are distributed over the three phases L1, L2, L3 so that they are loaded evenly. On the other hand, it is necessary that the loads I1 to O3 are controlled in groups. This leads to the circuit arrangement according to the invention.

Bei der erfindungsgemäßen Schaltungsanordnung werden die Lasten I1, I2 der ersten Lastengruppe I, die an die Schaltungsanordnung über Anschlüsse A11, A12, A13 einer ersten Anschlussgruppe an die Schaltungsanordnung angeschlossen sind, aus der dritten Phase L3 versorgt. Die Lasten M1, M2 der zweiten Lastengruppe M, die über die Anschlüsse A21, A22, A23 einer zweiten Anschlussgruppe mit der Schaltungsanordnung verbunden sind, werden dagegen aus der ersten Phase L1 mit elektrischer Energie versorgt.In the circuit arrangement according to the invention, the loads I1, I2 of the first load group I, which are connected to the circuit arrangement via terminals A11, A12, A13 of a first terminal group to the circuit arrangement, supplied from the third phase L3. The loads M1, M2 of the second load group M, which are connected via the terminals A21, A22, A23 a second terminal group to the circuit arrangement, however, are supplied from the first phase L1 with electrical energy.

Der Gesamtwiderstand der Lasten M1, M2 der zweiten Gruppe ist dabei ungefähr doppelt so groß wie der Gesamtwiderstand der Lasten I1, I2 der ersten Gruppe I.The total resistance of the loads M1, M2 of the second group is approximately twice as large as the total resistance of the loads I1, I2 of the first group I.

Die Lasten O1, O2, O3 der dritten Lastengruppe O werden zum Teil aus der zweiten Phase L2 und zum Teil aus der dritten Phase L3 versorgt. Während eine Untergruppe O3 der Lastengruppe O aus der dritten Phase L3 versorgt wird und mit der Schaltungsanordnung über einen Anschluss A31, A32 einer dritten Anschlussgruppe angeschlossen ist, wird eine Untergruppe O1, O2 der dritten Lastengruppe O aus der zweiten Phase L2 mit elektrischer Energie versorgt und ist dazu über Anschlüsse A41, A42, A43 einer vierten Anschlussgruppe mit der Schaltungsanordnung verbunden.The loads O1, O2, O3 of the third load group O are supplied in part from the second phase L2 and partly from the third phase L3. While a subgroup O3 of the load group O is supplied from the third phase L3 and is connected to the circuit via a terminal A31, A32 of a third terminal group, a subgroup O1, O2 of the third load group O from the second phase L2 is supplied with electrical energy and is connected to the circuit arrangement via terminals A41, A42, A43 of a fourth terminal group.

Es sind somit die Anschlüsse A11, A12, A13 der ersten Anschlussgruppe mit der dritten Phase L3, die Anschlüsse A21, A22, A23 der zweiten Anschlussgruppe mit der ersten Phase L1, die Anschlüsse A31, A32 der dritten Anschlussgruppe mit der dritten Phase L3 und die Anschlüsse A41, A42, A43 der vierten Anschlussgruppe der zweiten Phase L2 unter Zwischenschaltung der Schaltmittel S111 bis S345 verbunden.Thus, the terminals A11, A12, A13 of the first terminal group having the third phase L3, the terminals A21, A22, A23 of the second terminal group having the first phase L1, the terminals A31, A32 of the third terminal group having the third phase L3 and the terminals A41, A42, A43 of the fourth terminal group of the second phase L2 are connected with the interposition of the switching means S111 to S345.

Bei den Schaltmitteln S111 bis S345 handelt es sich um gesteuerte Schaltmittel, nämlich um Thyristoren, die Stellglieder von insgesamt drei Regelkreisen sind, mit denen die Spannung beziehungsweise die Leistung der drei Lastengruppen I, M, O geregelt werden kann. Die zur Ansteuerung der Stellglieder beziehungsweise der gesteuerten Schaltmittel S111 bis S345 vorgesehenen Regler sind in der Fig. 1 nicht dargestellt. Auch sind die für die Vervollständigung der drei Regelkreise notwendigen Sensoren in der Fig. 1 nicht bezeichnet.The switching means S111 to S345 are controlled switching means, namely thyristors, which are actuators of a total of three control circuits with which the voltage or the power of the three load groups I, M, O can be regulated. The regulators provided for controlling the actuators or the controlled switching means S111 to S345 are in the Fig. 1 not shown. Also, the necessary for the completion of the three control circuits sensors in the Fig. 1 not designated.

Die gesteuerten Schaltmittel S111 bis S345 sind in drei Gruppen angeordnet, wobei eine erste Schaltmittelgruppe von Schaltmitteln S111 bis S131 der ersten Lastengruppe I zugeordnet ist. Eine zweite Schaltmittelgruppe von Schaltmitteln S211 bis S231 ist der zweiten Lastengruppe M zugeordnet. Die dritte verbleibende Schaltmittelgruppe von Schaltmitteln S311 bis S345 ist der dritten Lastengruppe O zugeordnet. Mit den Schaltmittelgruppen ist das Einstellen der Spannung und somit der Leistung der Lasten der ihr jeweils zugeordneten Lastengruppe I, M, O möglich.The controlled switching means S111 to S345 are arranged in three groups, wherein a first switching means group of switching means S111 to S131 of the first load group I is assigned. A second switching means group of switching means S211 to S231 is assigned to the second load group M. The third remaining switching means group of switching means S311 to S345 is assigned to the third load group O. With the switching means groups, the setting of the voltage and thus the power of the loads of their respective associated load group I, M, O is possible.

Die erste Schaltmittelgruppe macht es möglich, dass die beiden Lasten I1, I2 der ersten Lastengruppe I parallel oder in Reihe geschaltet mit elektrischer Energie versorgt werden können. Sofern die elektrischen Lasten parallel geschaltet mit elektrischer Energie versorgt werden sollen, ist eines der Schaltmittel S121, S122 oder S123 durchgeschaltet, so dass aus einer der Anzapfungen der Sekundärseite des dritten Transformators T3 Strom durch die Schaltmittel S121, S122, S123 in den Anschluss A12 der Schaltungsanordnung fließen kann. Der Strom, der in den Anschluss A12 hineinfließt verzweigt sich und verteilt sich gleichmäßig auf die beiden Lasten E1, E2. Während der Strom über die Last I2 und den Anschluss A13 unmittelbar zum sekundärseitigen Bezugspotential des dritten Transformators T3 abfließt, fließt der Strom durch die Last I1 über den Anschluss A11 und über ein durchgeschaltetes Schaltmittel S131 zum Bezugspotential des dritten Transformators T3 ab. Die verbleibenden Schaltmittel S111, S112, S113, S114, S115 sperren im Parallelbetrieb der Lasten I1, I2.The first switching means group makes it possible that the two loads I1, I2 of the first load group I can be supplied in parallel or in series with electrical energy. If the electrical loads to be supplied in parallel with electrical energy, one of the switching means S121, S122 or S123 is turned on, so that from one of the taps of the secondary side of the third transformer T3 current through the switching means S121, S122, S123 in the terminal A12 of Circuit arrangement can flow. The current that flows into port A12 branches and distributes itself equally to the two loads E1, E2. While the current via the load I2 and the terminal A13 flows directly to the secondary-side reference potential of the third transformer T3, the current flows through the load I1 via the terminal A11 and through a switched switching means S131 to the reference potential of the third transformer T3. The remaining switching means S111, S112, S113, S114, S115 block the loads I1, I2 in parallel operation.

Durch die Auswahl des Schaltmittels S121, S122, S123 als stromführendes Schaltmittel kann aufgrund der Verbindung der Schaltmittel mit unterschiedlichen Anzapfungen die Spannung am Anschluss A12 eingestellt werden. Jedes der Schaltmittel deckt dabei einen Spannungsbereich ab, der einerseits durch die Wahl eines Phasenanschnittswinkels, d. h. durch die Wahl des Einschaltzeitpunkts des Schaltmittels während einer Periode beziehungsweise des Zündzeitpunkts des Thyristors und andererseits durch die Spannung an der Anzapfung vorgegeben ist.By selecting the switching means S121, S122, S123 as a current-carrying switching means, the voltage at the terminal A12 can be adjusted due to the connection of the switching means with different taps. Each of the switching means covers a voltage range, on the one hand by the choice of a phase angle, d. H. is predetermined by the selection of the switch-on of the switching means during a period or the ignition timing of the thyristor and on the other hand by the voltage at the tap.

Sollen die Lasten I1, I2 der ersten Lastengruppe I in Reihe geschaltet mit elektrischer Energie versorgt werden, wird die erste Lastengruppe I über den Anschluss A11 und einem der Thyristoren S111, S112, S113, S114 oder S115 mit einer der Anzapfungen der sekundärseitigen Spule des dritten Transformators T3 verbunden. Die übrigen Schaltmittel S121, S122, S123 und das Schaltmittel S131 sperren im Serienbetrieb der ersten Lastengruppe I. Der Strom fließt über einen der stromführenden Thyristoren S111 bis S115, den Anschluss A11, durch die Last I1, durch die Last I2 und über den Anschluss A13 zum Bezugspunkt der Sekundärseite des dritten Transformators T3. Je nach dem, welche Spannung am Anschluss A11 eingestellt werden soll, ist das eine oder das andere Schaltmittel S111 bis S115 stromführend. Mit jedem Schaltmittel kann ein bestimmter durch die Anzapfung und die möglichen Phasenanschnittswinkel vorgegebenen Spannungsbereich abgedeckt werden.If the loads I1, I2 of the first load group I to be supplied in series with electrical energy, the first load group I via the terminal A11 and one of the thyristors S111, S112, S113, S114 or S115 with one of the taps of the secondary-side coil of the third Transformer T3 connected. The remaining switching means S121, S122, S123 and the switching means S131 block in series operation of the first load group I. The current flows through one of the current-carrying thyristors S111 to S115, the terminal A11, through the load I1, through the load I2 and via the terminal A13 to the reference point of the secondary side of the third transformer T3. Depending on which voltage is to be set at the terminal A11, one or the other switching means S111 to S115 is energized. With each switching means can be a specific through the tap and the possible phase angle predetermined voltage range are covered.

Die Versorgung der Lasten M1, M2 der zweiten Lastengruppe M erfolgt analog wie die Versorgung der ersten Lastengruppe I. Auch die Lasten M1, M2 der zweiten Lastengruppe M können sowohl im Parallelbetrieb als auch im Serienbetrieb mit elektrischer Energie versorgt werden. Im Falle des Parallelbetriebs erfolgt die Versorgung über den Anschluss A22. Im Fall des Reinserienbetriebs über den Anschluss A21.The supply of the loads M1, M2 of the second load group M is analogous to the supply of the first load group I. The loads M1, M2 of the second load group M can be supplied with electrical energy both in parallel operation and in series operation. In the case of parallel operation, supply is via port A22. In the case of series operation via connection A21.

Der Anschluss A22 ist über eine Stromschiene mit Schaltmitteln S221, S222, S223 verbunden, ihrerseits jeweils mit einer sekundärseitigen Anzapfung des ersten Transformators T1 verbunden sind. Jeweils eines der Schaltmittel S221, S222, S223 ist stromführend und je nach Auswahl des Schaltmittels und nach Einstellung des Phasenanschnittswinkels kann die Spannung am Anschluss A22 vorgegeben werden. Der Strom fließt dann vom Anschluss A22 sowohl in die Last M1 als auch in die Last M2. Der durch die Last M2 fließende Strom wird über den Anschluss A23 unmittelbar zum sekundärseitigen Bezugspotential des ersten Transformators T1 geführt, während der Strom durch die Last M1 über den Anschluss A21 und über das Schaltmittel 231, welches im Parallelbetrieb der Lasten M1, M2 stromführend ist, zum sekundärseitigen Bezugspotential des Transformators T1 geführt ist.The connection A22 is connected via a busbar to switching means S221, S222, S223, which in turn are each connected to a secondary-side tap of the first transformer T1. Each one of the switching means S221, S222, S223 is energized and depending on the selection of the switching means and after adjustment of the phase angle, the voltage at the terminal A22 can be specified. The current then flows from terminal A22 into both the load M1 and the load M2. The current flowing through the load M2 is conducted via the terminal A23 directly to the secondary-side reference potential of the first transformer T1, while the current through the load M1 via the terminal A21 and via the switching means 231, which is energized in parallel operation of the loads M1, M2, to the secondary-side reference potential of the transformer T1 is performed.

Im Serienbetrieb der Lasten M1, M2 ist eines der gesteuerten Schaltmittel S211, S212, S213, S214, S215 stromführend, um den Strom von einer der Anzapfungen der Sekundärseite des ersten Transformators T1 zum Anschluss A21 zu ermöglichen. Vom Anschluss A21 fließt der Strom durch die Last M1, durch die Last M2 und über den Anschluss A23 zum sekundärseitigen Bezugspotential des ersten Transformators T1. Die Schaltmittel S221, S222, S223 und das Schaltmittel S231 sperren im Serienbetrieb.In series operation of the loads M1, M2, one of the controlled switching means S211, S212, S213, S214, S215 is energized to allow the current from one of the taps of the secondary side of the first transformer T1 to the terminal A21. From the terminal A21, the current flows through the load M1, through the load M2 and through the terminal A23 to the secondary-side reference potential of the first transformer T1. The switching means S221, S222, S223 and the switching means S231 lock in series operation.

Ebenso analog erfolgt die elektrische Energieversorgung der Lasten O1 und O2 der Lastengruppe O. Im Parallelbetrieb der Lasten O1, O2 ist eines der Schaltmittel S321, S322, S323 und das Schaltmittel S331 durchgeschaltet, um einen Stromfluss von einem der sekundärseitigen Anzapfungen des zweiten Transformators T2 über den Anschluss A42, von dort aus einerseits durch die Last O1 über den Anschluss A41 und das durchgeschaltete Schaltmittel S331 und andererseits durch die Last O2 über den Anschluss A23 zum sekundärseitigen Bezugspotential des zweiten Transformators T2 zu ermöglichen.Similarly, the electrical power supply of the loads O1 and O2 of the load group O. In parallel operation of the loads O1, O2 one of the switching means S321, S322, S323 and the switching means S331 is turned on to a current flow of one of the secondary-side taps of the second transformer T2 via the terminal A42, from there on the one hand by the load O1 via the terminal A41 and the switched-through switching means S331 and on the other hand by the load O2 via the terminal A23 to the secondary-side reference potential of the second transformer T2 to allow.

Im Serienbetrieb wird dagegen die Untergruppe, die aus den Lasten O1, O2 der dritten Lastengruppe O gebildet ist, über eines der Schaltmittel S311, S312, S313, S314 oder S315 mit Spannung aus einer der sekundärseitigen Anzapfungen des zweiten Transformators T2 versorgt. Die Schaltmittel S321, S322, S323 und das Schaltmittel S331 sperren im Serienbetrieb der Untergruppe, die aus den Lasten O1, O2 der dritten Lastengruppe O gebildet ist.In series operation, on the other hand, the subgroup formed of the loads O1, O2 of the third load group O is supplied with voltage from one of the secondary-side taps of the second transformer T2 via one of the switching means S311, S312, S313, S314 or S315. The switching means S321, S322, S323 and the switching means S331 lock in series operation of the subgroup, which is formed from the loads O1, O2 of the third load group O.

Die Last O3 der dritten Lastengruppe O wird über den dritten Transformator T3 aus der dritten Phase L3 mit elektrischer Energie versorgt. Zur Versorgung der Last O3 ist eines der Schaltmittel S341, S342, S343, S344 oder S345 stromführend. Je nach Wahl des Schaltmittels, das jeweils mit einer sekundärseitigen Anzapfung des Transformators T3 verbunden ist, kann die Spannung am Anschluss A31, über welchen die Last O3 angeschlossen ist, mit elektrischer Energie versorgt werden. Die Spannung ist dabei durch die Wahl des Schaltmittels und durch die Wahl des Phasenanschnittswinkels vorgegeben, der von einem nicht dargestellten Regler eingestellt wird.The load O3 of the third load group O is supplied with electrical energy via the third transformer T3 from the third phase L3. To supply the load O3, one of the switching means S341, S342, S343, S344 or S345 is live. Depending on the choice of the switching means, which is connected in each case with a secondary-side tap of the transformer T3, the voltage at the terminal A31, via which the load O3 is connected, can be supplied with electrical energy. The voltage is predetermined by the choice of the switching means and by the choice of the phase angle, which is set by a controller, not shown.

Jeder Schaltmittelgruppe der Schaltungsanordnung ist ein Regler zugeordnet, welcher die Phasenabschnittwinkel der einzelnen Schaltmittel S111 bis S345 vorgibt. Während die Schaltmittel S111 bis 131 der ersten Schaltmittelgruppe und die Schaltmittel S211 bis231 der zweiten Schaltmittelgruppe jeweils nur aus einer Phase L3 bzw. L1 mit Spannung versorgt werden, werden die Schaltmittel S311 bis345 der dritten Schaltmittelgruppe zur Versorgung der dritten Lastengruppe O aus zwei Phasen, nämlich aus der zweiten Phase L2 und der dritten Phase L3 mit Spannung versorgt. Dennoch werden die Schaltmittel S311 bis S345 der dritten Schaltmittelgruppe von einem Regler angesteuert und gehören zusammen mit diesem Regler und zugeordneten Sensoren zu einem dritten Regelkreis.Each switching means group of the circuit arrangement is assigned a controller which predefines the phase section angle of the individual switching means S111 to S345. While the switching means S111 to 131 of the first switching means group and the switching means S211 to 232 of the second switching means group are supplied with voltage only from one phase L3 and L1 respectively, the switching means S311 to 345 of the third switching means group for supplying the third load group O are made of two phases, viz from the second phase L2 and the third phase L3 supplied with voltage. Nevertheless, the switching means S311 to S345 of the third switching means group are controlled by a controller and belong together with this controller and associated sensors to a third control loop.

Das in Fig. 2 dargestellte zweite Ausführungsbeispiel für eine erfindungsgemäße Schaltungsanordnung und eine Anordnung aus der erfindungsgemäßen Schaltungsanordnung und daran angeschlossener Lasten weist viele Gemeinsamkeiten mit dem ersten Ausführungsbeispiel auf. Es sind daher gleiche beziehungsweise gleichwirkende Bauelemente, Bauteile und Anschlüsse mit gleichen Bezeichnungen versehen. Nachfolgend wird im Wesentlichen auf die Unterschiede zwischen den beiden Ausführungsbeispielen eingegangen.This in Fig. 2 illustrated second embodiment of a circuit arrangement according to the invention and an arrangement of the circuit arrangement according to the invention and connected thereto loads has much in common with the first embodiment. There are therefore identical or equivalent components, components and connections provided with the same names. In the following, the differences between the two exemplary embodiments are essentially dealt with.

Der wesentliche Unterschied zwischen den beiden erfindungsgemäßen Schaltungsanordnungen ist, dass die Schaltungsanordnung gemäß Fig. 2 für den Anschluss von jeweils drei Lasten an der ersten Anschlussgruppe und an der zweiten Anschlussgruppe vorgesehen sind. Die erste Gruppe I umfasst daher drei Lasten I1, I2, I3 und die zweite Lastengruppe M umfasst drei Lasten M1, M2 und M3. Sowohl die drei Lasten der ersten Lastengruppe I als auch die drei Lasten M1, M2, M3 der zwei Lastengruppe M können parallel als auch seriell geschaltet mit elektrischer Energie aus der dritten Phase L3 beziehungsweise aus der ersten Phase L1 versorgt werden.The essential difference between the two circuit arrangements according to the invention is that the circuit arrangement according to FIG Fig. 2 are provided for the connection of three loads on the first terminal group and on the second terminal group. The first group I therefore comprises three loads I1, I2, I3 and the second load group M comprises three loads M1, M2 and M3. Both the three loads of the first load group I and the three loads M1, M2, M3 of the two load groups M can be supplied in parallel as well as serially connected with electrical energy from the third phase L3 or from the first phase L1.

Damit eine parallele Versorgung der drei Lasten der ersten Lastengruppe I und der zweiten Lastengruppe M möglich ist, ist jeweils ein weiterer Anschluss A14 bzw. A24 in der ersten Anschlussgruppe und in der zweiten Anschlussgruppe, jeweils ein weiteres Schaltmittel S132 bzw. S232 in der ersten Schaltmittelgruppe und der zweiten Schaltmittelgruppe und eine geänderte Leitungsführung notwendig. Die Art und Weise der Leitungsführung beziehungsweise des Einsatzes der zusätzlichen Schaltmittel ist dabei grundsätzlich aus der Druckschrift mit der Veröffentlichungsnummer DE 203 18 061 U1 bekannt, auf die verwiesen wird.So that a parallel supply of the three loads of the first load group I and the second load group M is possible, in each case one further connection A14 or A24 in the first connection group and in the second connection group, in each case a further switching means S132 or S232 in the first switching means group and the second switching means group and a changed wiring necessary. The manner of routing or the use of additional switching means is basically from the publication with the publication number DE 203 18 061 U1 known, to which reference is made.

Im Falle des Parallelbetriebs sind sowohl die Schaltmittel S131, S231 als auch die Schaltmittel S132 beziehungsweise S232 durchgeschaltet. Der Strom fließt dann einem der durchgeschalteten Schalter S131, S122, S123 beziehungsweise S221, S222, S223 einerseits zum Anschluss A13 bzw. A23 zwischen der Last I2 und der Last I3, beziehungsweise der Last M2 und der Last M3 als auch über das Schaltmittel S131 beziehungsweise S231 und den Anschluss A11 bzw. A21 zur Last 11 beziehungsweise zur Last M1. Nachdem die Ströme durch die Lasten I1, I2, beziehungsweise M1, M2 geflossen sind, fließen sie vom Anschluss A12 über das Schaltmittel S132 zum sekundären Bezugspotential des dritten Transformators T3 beziehungsweise vom Anschluss A22 über das Schaltmittel S232 zum sekundären Bezugspotential des Transformators T1. Ebenso fließen die Ströme aus den Lasten I3 beziehungsweise M3 über die Anschlüsse A14 beziehungsweise A24 zum sekundären Bezugspotential der Transformatoren T3 beziehungsweise T1.In the case of parallel operation, both the switching means S131, S231 and the switching means S132 or S232 are connected through. The current then flows to one of the through-connected switches S131, S122, S123 or S221, S222, S223 on the one hand to the connection A13 or A23 between the load I2 and the load I3, or the load M2 and the load M3 and via the switching means S131 or S231 and the connection A11 and A21 to the load 11 and the load M1, respectively. After the currents have flowed through the loads I1, I2, and M1, M2, respectively, they flow from the terminal A12 via the switching means S132 to the secondary reference potential of the third transformer T3 or from the terminal A22 via the switching means S232 to the secondary reference potential of the transformer T1. The currents from the loads I3 and M3 likewise flow via the connections A14 and A24 to the secondary reference potential of the transformers T3 and T1, respectively.

Claims (14)

  1. Circuit arrangement for supplying, in particular, variable loads (I1, I2, M1, M2, O1, O2, O3) from three phases (L1, L2, L3), having the following features:
    - the circuit arrangement has four groups of connections (A11, A12, A13, A14; A21, A22, A23, A24; A31, A32; A41, A42, A43) for the loads (I1, 12, M1, M2, O1, O2, O3), and these are referred to in the following text as connection groups;
    - the circuit arrangement is designed to supply the connections (A21, A22, A23, A24) of the second connection group from the first phase (L1);
    - the circuit arrangement is designed to supply the connections (A41, A42, A43) of the fourth connection group from the second phase (L2);
    - the circuit arrangement is designed to supply the connections (A11, A12, A13) of the first connection group and of the third connection group (A31, A32) from a third phase (L3);
    - the circuit arrangement is designed to regulate the voltage of the four connection groups
    - wherein
    - the first connection group is associated with a first control loop, and the first control loop has a first regulator and a first group of controllable switching means (S111 to S132) for adjusting the voltage as an actuating element, and this is referred to in the following text as the first switching means groups,
    - the second connection group is associated with a second control loop, and the second control loop has a second regulator and a second group of controllable switching means (S211 to S231) for adjusting the voltage as an actuating element, and this is referred to in the following text as the second switching means group,
    - the third connection group and the fourth connection group are associated with a common third control loop, and the third control loop has a third regulator and a third group a controllable switching means (S311 to S345) for adjusting the voltage as an actuating element, and this is referred to in the following text as the third switching means group.
  2. Circuit arrangement according to Claim 1,
    characterized in that the controllable switching means (S111 to S345) are thyristors.
  3. Circuit arrangement according to Claim 2,
    characterized in that the first switching means group (S111 to S132) is designed to change between a parallel supply and a series supply to the loads (I1, 12) which can be connected to the first connection group.
  4. Circuit arrangement according to one of Claims 2 to 3, characterized in that the second switching means group (S211 to S232) is designed to change between a parallel supply and a series supply to the loads (M1, M2) which can be connected to the second connection group.
  5. Circuit arrangement according to one of Claims 2 to 4, characterized in that the third switching means group (S311 to S345) is designed to change between a parallel supply and a series supply to the loads (O1, O2, O3) which can be connected to the third and the fourth connection groups.
  6. Circuit arrangement according to one of Claims 2 to 5, characterized in that the switching means in the first switching means group are designed to switch currents from the third phase (L3).
  7. Circuit arrangement according to one of Claims 2 to 6, characterized in that the switching means and the second switching means group are designed to switch currents from the first phase (L1).
  8. Circuit arrangement according to one of Claims 2 to 7, characterized in that a first subgroup of switching means (S311 to S331) in the third switching means group is designed to switch currents from the second phase (L2).
  9. Circuit arrangement according to one of Claims 2 to 7, characterized in that a second subgroup of switching means (S341 to S345) in the third switching means group is designed to switch currents from the third phase (L3).
  10. Circuit arrangement according to Claim 9, characterized in that the lowest voltage which can be set by the switching means in the first switching means group (S111 to S132) or the second subgroup (S341 to S345) of the third switching means group is half the magnitude of the voltage which can be set by the switching means in the second group (S211 to S232) and the first subgroup (S311 to S331) of the third switching means group.
  11. Arrangement comprising a circuit arrangement according to one of Claims 1 to 10 and variable loads (I1, I2, M1, M2, O1, O2, O3), wherein
    - a first group (I1, I2) of the loads (I1, I2, M1, M2, O1, O2, O3) is connected to the connections (A11, A12, A13, A14) of the first connection group,
    - a second group (M1, M2) of the loads (I1, I2, M1 M2, O1, O2, O3) is connected to the connections (A21, A22, A23, A24) of the second connection group, and
    - a third group (O1, O2, O3) of the loads (I1, I2, M1, M2, O1, O2, O3) is connected to the connections (A31, A32) of the third connection group and to the connections (A41, A42, A43) of the fourth connection group.
  12. Arrangement according to Claim 11, characterized in that the resistance of the loads (M1, M2; O1, O2) which are connected to the second and the fourth connection groups is of the same magnitude.
  13. Arrangement according to Claim 12, characterized in that the resistance of the loads (I1, I2; O3) which are connected to the first and the third connection groups is of the same magnitude.
  14. Arrangement according to Claims 12 and 13, characterized in that the total resistance of the loads (I1, I2; O3) which are connected to the first and the third connection groups is of precisely the same magnitude as the resistance of the loads (M1, M2; 01, 02) which are connected to the second or the fourth connection groups.
EP20070015591 2007-01-18 2007-08-08 Power supply circuit for changing loads with three phases Not-in-force EP1947545B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020080004190A KR20080068553A (en) 2007-01-18 2008-01-15 Circuit arrangement for supplying electric energy to variable loads from three phases
US12/015,927 US7851942B2 (en) 2007-01-18 2008-01-17 Circuit arrangement for supplying variable loads from three phases
CN2008101287272A CN101364772B (en) 2007-01-18 2008-01-17 Circuit arrangement for supplying electric energy to variable loads from three phases
JP2008009903A JP5524450B2 (en) 2007-01-18 2008-01-18 Circuit layout for supplying loads varying from three phases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007001083 2007-01-18

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EP1947545A2 EP1947545A2 (en) 2008-07-23
EP1947545A3 EP1947545A3 (en) 2009-04-29
EP1947545B1 true EP1947545B1 (en) 2010-05-19

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EP (1) EP1947545B1 (en)
JP (1) JP5524450B2 (en)
KR (1) KR20080068553A (en)
CN (1) CN101364772B (en)
AT (1) ATE468648T1 (en)
DE (1) DE502007003839D1 (en)
ES (1) ES2345846T3 (en)

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ES2345846T3 (en) * 2007-01-18 2010-10-04 Aeg Power Solutions B.V. CIRCUIT PROVISION FOR THE FEEDING OF VARIABLE LOADS FROM THREE PHASES.
DE102009021403B4 (en) * 2008-05-21 2013-05-08 Aeg Power Solutions B.V. Apparatus for supplying an electric power reactor for producing silicon rods from silicon thin rods according to the Siemens method
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JP5524450B2 (en) 2014-06-18
DE502007003839D1 (en) 2010-07-01
ES2345846T3 (en) 2010-10-04
US7851942B2 (en) 2010-12-14
CN101364772B (en) 2012-03-28
EP1947545A2 (en) 2008-07-23
JP2008178290A (en) 2008-07-31
US20080179952A1 (en) 2008-07-31
ATE468648T1 (en) 2010-06-15
CN101364772A (en) 2009-02-11
KR20080068553A (en) 2008-07-23
EP1947545A3 (en) 2009-04-29

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